body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f4f8; /* 浅蓝色背景 */
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
    background-color: #ffffff; /* 白色容器背景 */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    text-align: center;
}

h1 {
    color: #003366; /* 深蓝色标题 */
    font-size: 28px;
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #333;
}

input[type="text"],
input[type="password"] {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #cccccc;
    border-radius: 4px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #0077cc; /* 蓝色按钮 */
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #005599; /* 深蓝色按钮悬停 */
}